反应详情

A solution of N-(7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-4-(2-hydroxypropan-2-yl)benzamide (2F, 100 mg, 0.290 mmol), N-(2-hydroxyethyl)piperidine-3-carboxamide (100 mg, 0.580 mmol), and N, N-diisopropylethylamine (112 mg, 0.870 mmol) in DMF (1.0 mL) was stirred at 100° C. for 3 h. After cooling to room temperature, the mixture was diluted with a few drops of DMSO and methanol, and was then purified by preparatory HPLC (20-45% MeCN/H2O gradient+0.01% TFA). Lyophilization of the combined fractions gave the titled compound as a white solid (65.9 mg, 47%). 1H NMR (DMSO-d6) δ: 10.95 (s, 1H), 8.12 (t, J=5.6 Hz, 1H), 7.99 (d, J=8.6 Hz, 2H), 7.61 (d, J=8.6 Hz, 2H), 7.22 (s, 1H), 6.21 (s, 1H), 4.16-4.38 (m, 2H), 3.42-3.51 (m, 1H), 3.40 (t, J=6.2 Hz, 2H), 3.04-3.22 (m, 3H), 2.52-2.63 (m, 1H), 2.38 (s, 3H), 1.86-2.00 (m, 1H), 1.61-1.85 (m, 3H), 1.45 (s, 6H); ESI-MS: m/z 481.2 (M+H)+.

1. customwas then purified by preparatory HPLC (20-45% MeCN/H2O gradient+0.01% TFA)